A less than funniest but cornier than usual episode. So funny all the references to Wally being fat (these continue in subsequent episodes). People in those days had no clue to how fat most people would become 50 years later. Wally would be "slim Jim" these days.

I guess I never realized that Ozzie could play the guitar - but I guess he did.

The Adventures of Ozzie and Harriet.
Season 6, episode 11.
Original aired: 18 December 1957.
David and Rick decide to earn some extra cash to buy Christmas presents by opening up a Christmas tree lot, but soon discover that being a small-time entrepreneurs is a lot more imvolved than they had realized.
Cast: Ozzie Nelson (Ozzie), Harriet Nelson (Harriet), David Nelson (Dave), Ricky Nelson (Rick), Skip Young (Wally), Parley Baer (Darby), Gavin Gordon (Mr. Ferguson), Jean Moorhead (Jean), Barney Phillips (Truck Driver), John Wilder (John), Ann Warner (Ann), Jack Wagner (Soda Clerk), Barbara Pepper (Woman with Santa) and Bess Flowers (Audience Member- Ozzie Singing: uncredited).
Information from IMDB.

this is from season 6, episode 14. In "The Christmas Tree Lot" Rick & David decide to sell Christmas trees to buy presents.

This episode is from Season 1 Episode 12

The boys decide to go to work to earn extra money for Christmas shopping.